Finding the Fourth Proportional to 3,753.32, 5,630.67 and 1,288.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,753.32 : 5,630.67 = 1,288.39 : x
2. Step 2: Convert to fraction form
   3,753.32/5,630.67 = 1,288.39/x
3. Step 3: Cross multiply
   3,753.32x = 5,630.67 × 1,288.39
4. Step 4: Simplify right side
   3,753.32x = 7,254,498.92
5. Step 5: Solve for x
   x = 7,254,498.92/3,753.32
6. Step 6: Final answer
   x = 1,932.82